Servant Leadership
a leadership style prioritizing followers' growth, well-being, and needs above the leader's own self-interest
§1The Principia rendering
A copyright-clean measure of this construct, authored by Principia and free to use — the one we can show in full. This is an other-rated scale: the respondent rates my direct manager, not themselves.
Predicted psychometrics. These 11 items carry a design grade of A (avg design score 92/100) from the item-design model — an estimate pending calibration, not a measured reliability. Real responses (via deployment) sharpen it toward measured, which is what the licensing model collects.
§2The established instruments
What the field already uses — named and cited, not reproduced (item wording is copyrighted and withheld pending clearance).
- Servant Leadership Survey (SLS) — van Dierendonck & Nuijten
§3The math on what we know
Synthesized priors from the live registry: pooled r, studies (k), total N, top study grade, and heterogeneity. Rows flagged for heterogeneity or single-study evidence are directional, not settled — read them as a central tendency.
What servant leadership predicts
| Outcome | r | k | N | Grade | Confidence |
|---|---|---|---|---|---|
| Trust In Leader | +0.71 | 1 | 1,886 | B | single study |
| Leader Member Exchange LMX | +0.65 | 1 | 938 | B | single study |
| Organizational Commitment | +0.58 | 2 | 17,457 | A | I²≈0.98 |
| Job Satisfaction | +0.58 | 2 | 14,326 | A | I²≈0.99 |
| Work Engagement | +0.49 | 2 | 9,598 | A | — |
| Affective Commitment | +0.41 | 1 | 1,436 | B | single study |
| Organizational Citizenship Behavior OCB | +0.37 | 2 | 18,338 | A | — |
| Turnover Intention | −0.34 | 1 | 3,222 | A | single study |
| Counterproductive Work Behaviours | −0.27 | 1 | 4,186 | A | single study |
| Task Performance | +0.25 | 2 | 9,788 | A | coherent |